White band on screen with pink lines

Hello everyone,

I have an (old) Macbook Pro, and for quite some time now, I have a white band on the screen with some pink lines. The screen also is quite loose, but I don’t know if it’s related to the problem. Sometimes the band goes away, but I would say that on average it is always there.

I have attached the picture for you, for some more context.

I have also an LVDS cable for the replacement, but I don’t know if it’s necessary, because I saw that replacing it is a tough job. I am also waiting for a second display to arrive, but I think the problem is related to the cable.

Do you think I can solve this by replacing the LVDS cable? Or I might better check the one I have, and see if there’s something wrong with the connection on the motherboard?

Thank you so much for helping me.